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    9550 upgraded to BIOS 01.01.15 bad performance on battery

    Discussion in 'Dell XPS and Studio XPS' started by KoW210, Feb 6, 2016.

  1. KoW210

    KoW210 Notebook Guru

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    So I upgraded my bios from something like 01.00.07 or something like that. That version shipped with my 9550 a week ago. I tested out games and such and I don't remember having this issue before. Games ran fine (after disabling Nvidias battery saving feature) whether the XPS was plugged in or not. Now I get terrible performance when it's not plugged in, to the point where it's unplayable, and the audio glitches out. As soon as I plug it in, bam, back to being playable with no audio glitches. Anyone experience this with the new 01.01.15 BIOS?
     
    KoW210, Feb 6, 2016
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  2. Fant

    Fant Notebook Evangelist

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    Not sure everyone is currently testing/running the new 1.1.19 BIOS that was released a few days ago.
     
    Fant, Feb 6, 2016
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  3. KoW210

    KoW210 Notebook Guru

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    I just installed the 1.1.19 BIOS and I'm still having the same problem.
     
    KoW210, Feb 6, 2016
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  4. KoW210

    KoW210 Notebook Guru

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    It's at "excellent." It's set to "Dell." I changed it to balanced and high performance but it still does this. I noticed though that when playing a game, the CPU down clocks by about 50% and when I plug it back in it goes way back up.

    Also when I'm at the desktop doing nothing, it sits at around 3GHz plugged in, but when I unplug it it goes down to around 1GHz. This is on high performance.

    On balanced, when plugged in it is anywhere from 0.90GHz to 1.80GHz, and when I unplug it it sits around 0.90GHz and rarely goes over 1GHz.
     
    Last edited: Feb 6, 2016
    KoW210, Feb 6, 2016
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  5. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    Have you tried resetting your bios to default after update?
     
    LOUSYGREATWALLGM, Feb 6, 2016
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  6. KoW210

    KoW210 Notebook Guru

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    I just reset the BIOS to the default settings and it still does it.
     
    KoW210, Feb 6, 2016
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  7. KoW210

    KoW210 Notebook Guru

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    I don't understand.
     
    KoW210, Feb 6, 2016
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  8. KoW210

    KoW210 Notebook Guru

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    It's at 98%
     
    KoW210, Feb 6, 2016
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  9. ghtop

    ghtop Notebook Consultant

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    You're missing the point, this thread is about CPU performance when running off the battery, not about battery health.
     
    ghtop, Feb 6, 2016
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  10. ghtop

    ghtop Notebook Consultant

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    Source, please.
     
    ghtop, Feb 6, 2016
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  11. ghtop

    ghtop Notebook Consultant

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    Well, you believe a Dell support drone who signs his name John Adam yet can barely write coherent English if you want to, but that just seems the usual Dell support guff to me, particularly the ramblings about "all old bios versions".
     
    ghtop, Feb 6, 2016
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  12. KoW210

    KoW210 Notebook Guru

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    I ran two 3DMark tests, one plugged in and another unplugged. There's an 18% percent in difference. Could it be thermal throttling?

    Plugged in -
    [​IMG]


    Unplugged -
    [​IMG]
     
    Last edited: Feb 8, 2016
    KoW210, Feb 6, 2016
    #12